Grandmark Service Company

I needed help installing a new digital thermostat in my home. I used request a quote and Grandmark were quick to respond and called me to set up an appointment the next morning. They were able to...

Well, this is definitely embarrassing for the company. Unfortunately, I had never heard of this "5-star" company until one of their employees rudely harassed my boyfriend and nearly hit him with...

Reposting since the owner claimed they couldn't find me in their database of 7,000 clients--likely all taken advantage of the same way. I had your so-called EXPERTS come out to replace a $25...

Great service, quick, efficient and everyone I came into contact with was helpful, polite and worth the time. Thank you Grandmark for everything you do to get my home ready for winter!

I rent a room in a house that needed a new roof. The owner liked the price and agreed to their service. The first group set up the areas where they would remove the current roof tiles and throw...